<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    单行输入：<input type="text">
    <input type="text" style="height: 50px;width: 100px;">
    <hr>
    密码：<input type="password">
    <hr>
    <button>按钮</button>
    <hr>
    <input type="submit">
    <input type="submit" value="a提交1">
    <input type="reset">
    <input type="reset" value="清空111">
    <hr>
    <h1>form - 登录</h1>
    <form action="a.php" method="post">
        <p>
            用户名：<input type="text" name="uname">
        </p>
        <p>
            手机号：<input type="text" name="phone">
        </p>
        <p>
            密码：<input type="password" name="pass">
        </p>
        <input type="submit">
        <input type="reset">
        <!-- 类似 input-submit -->
        <button>按钮1</button>
    </form>
</body>
</html>